Looking at a 1993 Ranger with 150 EFI outboard. I have always been an OMC/BRP guy but this boat is super clean from gel coat to carpet. The seller says the engine has a remanufactured OBR powerhead. Is this a reputable builder? Also says the break in has not been completed, how do I go about this in a EFI engine. On my previous Etec automatically double oiled and on my older mixers I was always told to Double mix for a certain amount of time as well as the usual RPM limits and variance. Any help is appreciated.